ACSR/Aw, Aluminium Conductors Aluminium Clad Steel Reinforced (UNE 21018)

Manufacture Process
Aluminium melting, continuous casting and rolling.
Drawing.
Stranding of aluminium clad steel cores.
Stranding of aluminium layers.

Properties
Aluminium clad steel is a high strength steel, covered by a thick coating of pure aluminium (10% wire radious min. ), which is cold drawn to obtain required characteristics and final wire size.
The aluminium clad steel wires, in comparison with galvanized steel wires of same size, have the same tensile characteristics, but a lower weight and a considerably higher electrical conductivity and corrosion resistance.
This last property is specially important in the construction of the finished conductor, where the aluminium wires are in contact with the aluminium clad steel wires of the reinforcing core, thus avoiding the possibility of galvanic corrosion between core and surrounding layers of aluminium.